Sloan Digital Sky Survey

Astronomers with the Sloan Digital Sky Survey (SDSS) announced that a distant quasar ran out of gas. Their conclusions, reported Jan. 8 at the American Astronomical Society meeting in Kissimmee, Florida, clarify why quasar SDSS J1011+5442 changed so dramatically in the handful of years between observations.

The Sloan Digital Sky Survey, a consortium of institutions of which the University of Washington is part, will soon expand its view to see the entire sky, and even peer into the Milky Way’s galactic center.